Combined heating and ventilating apparatus.



UNITED STATES Patented July '7, 190a. PATENT OFF-Ion.

GEORGE BEDDOW, OF DETROIT, MICHIGAN, .ASSIGNOR OF ONE-HALF TO JAMES H.BEDDOW, OF DETROIT, MICHIGAN.

COMBINED HEATING AND VENTILATING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 732,698, dated July 7,1903. Application filed December 13, 1901. Serial Nn. 85,725, (No modl.)

To all whom/it may concern.-

Be it known that I, GEORGE BEDDOW, a citizen of the United States ofAmerica, residing at Detroit, in the county of Wayne and State ofMichigan, have invented certain new and useful Improvements in aCombined Heating and Ventilating Apparatus, of which the following is aspecification, reference being bad therein to the accompanying drawings.

My invention relates to an apparatus for drawing the cold vitiated airfrom a room and bringing the hot air down from the ceiling; and to thisend it has for its object to provide a device for this purpose which isadapt ed for use in connection with a smoke-pipe leading from a stoveorother heater into a chimney or other flue, which is easily applied tothe pipe, requiring no change in the ordinary chimney, and which willnot retard the draft of the stove, and through which the soot and smokewill not escape into the room when the air backs up into the chimney. Tothis end a conduit formed to fit within the lower side of the horizontalportion of the stovepipe is provided, having one end open and the otherclosed and provided with a branch adapted to project through an openingprovided therefor in the bottom of the pipe, to which branch isconnected a pipe extending to near the fioor to conduct the air upwardtherefrom. The conduit is usually placed in the length of pipe whichenters the chimney and its open end allowed to project a short distancebeyond the end of the pipe into the chimney-flue to conduct the currentof air issuing from said conduit to the farther side of the flue and toprevent the smoke and soot from being driven into the conduit by anytemporary downdraft in the chimney; and its object is also to providethe device with certain details of construction, all as hereinafter morefully described, and particularly pointed out in the claim, referencebeing had to the accompanying drawings, in which- Figure 1 is a verticalsection of a room and chimney-flue, showing a stove in position for useand also showing in section a device embodying my invention in positionin the stovepipe. Fig. 2 is a perspective view'of the conduit within thepipe, and Fig. 3 is a vertical section showing the conduit applied to anordinary T-pipe. Q

A is a conduit formed with a semicircular bottom a to fit the curvatureof the stovepipe B and provided with a Hat top 12 and a branch 0, whichextends downward from the curved bottom a. One end d of the conduit isclosed and the opposite end 6 is left open, said end .and vitiated airtherefrom and bring the hot air down from the ceiling, said pipe beingprovided with a damperf, so that it may be closed, if desired.

Instead of cutting a hole into the pipe B to receive the branch 0 anordinary T-pipe E may be used, as shown in Fig. 3, and the ordinarylengths of stovepipe used instead of the pipe D. (Shown in Fig.1.) Bythis construction the draft is notin the least impaired, as the conduitenters the chimney as a separate and distinct fine, having nocommunication whatever with the stovepipe, and projects therein somedistance to deliver its air- .currents near the side of the flueopposite the chimney-hole, so that they will not join the air and gasesissuing from the stovepipe immediately at the entrance to thechimneyfiue or within the stovepipe, and thus check their flow. Theconduit A takes up but a small portion of the diameter of thestovepipeat its lower side, and so does not clog the same to retard the passageof the products of combustion, which being light follow the top of thepipe, and the open endof the conduit being narrow and projecting intothe chimney-flue tends to prevent the soot'from lodging therein and alsoprevents the soot and smoke from being driven downward into in the pipelength that enters the chimney or substituting a T length therefor. Thislength of pipe B or T length Ewith the conduit A therein may besubstituted for any length of pipe in the line and the pipe D ex tendedfrom there to near the floor; but I prefer for obvious reasons tosubstitute it for the length entering the chimney and extend the pipe Ddownward adjacent to the wall.

\Vhat- I claim as my invention is A ventilating apparatus comprising ahorizontal stovepipe communicating with an opening in the chimney-fine,a vertical open ventilator connected therewith and extending to a pointnear the floor, a damper in said pipe,

and a conduit removably inserted in the horizontal pipe and having acurved bottom to fit the contour of the horizontal pipe, afiat top, adepending branch fitting loosely into the depending collar of thehorizontal pipe which fits into the vertical pipe, and aclosed inner endwithin the horizontal pipe extended beyond the vertical pipe and havinga bearing on the adjacent portion of the horizontal pipe, said end beinginclined, and the opposite end of said conduit being open and extendedinto the chimney-flue beyond the end of the horizontal pipe, saidconduit being comparatively shallow whereby it occupies but a smallportion of the lower part of the horizontal pipe,

substantiallyas and for the purpose specified. In testimony whereof Iaffix my signature in presence of two witnesses.

GEORGE BEDDOW. Witnesses:

OTTO F. BARTHEL, JAMES H. Bnonow.

